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(No Modl.) 4 Sheets-Sheet 1. P. S. KOHLER.

APPARATUS FOR PRODUCING SHOT.

No. 406,353. Hyj Patented July 2, 1889.

(No Model.) U 4 Sheets-Sheet 2.

I F. S. KOHLER.

APPARATUS FOR PRODUGING SHOT. No. 406.358. F 'y.2. Patented July 2, 1889.

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u PETERS Phowlilhugraphen wnmn w u (No Model.) A 4 Sheets-Sheet 3. P. S. KOHLER.

' APPARATUS FOR PRODUCING SHOT. No. 406,353. Patented July 2, 1889.

(No ModeL) 4 Sheets-Sheet 4.

F. S. KOI-ILER.

APPARATUS FOR ODUGING SHOT.

No. 406,353. Patented July 2, 1889..

ZV (wag: 5 all UNITED STATES PATENT OFFICE.

,ERANZ sERAE1oUs KoHLER, OF SMICHEW, NEAR PRAGUE, AUsTRIA-HUN- GARY, AssIcNoR OF ONE-HALF TO LUDWIG KEYLING, or BERLIN, GER- MANY.

APPARATUS FOR PRODUCING SHOT.

SPECIFICATION forming part of Letters Patent No. 406,353, dated July 2, 1889.

Application filed November 1'7, 1888. Serial No. 291,157. (No model.)

To all whom, it may concern:

Be it known that I, FRANZ SERAFIcUs Kon- LER, director, of Smichew, near Prague, in the Kingdom of Bohemia and Empire of Austria,

have invented certain new and useful Improvements in Apparatus for Producing Shot, of which the following specification, taken in connection with the acdompanying drawings, is a full, clear, and exact description, such as to will enable those skilled in the art to which it appertains to make and use the same.

Shot and other like spherical forms of metal have heretofore been made either by casting in molds, by use of shot-towers, or experir 5 mentally by treating the fluid lead in centrifugal machines. All of these methods are very costly on account of the expensive apparatus employed and the care and skill required in attending to them; consequently the cost of the product is much higher than it should be.

The hereinafter-described invention has for its object to provide a machine for producing shot, &c., which will obviate the many disad- 2 5 vantages arising from the use of the apparatus now generally known.

By means of my invention shot and metal balls of all descriptions may be obtained ina truly spherical form and presenting a high 39 polish. It is known that if metal be reduced to fragments of suitable volume in the form of tubes and a suitable quantity of such fragments be placed in a cylindrical or other suitably-shaped vessel, and said vessel be given 3 5 a rapid and violent reciprocating motion, either in a vertical or horizontal direction, the resulting friction caused by the metal striking against the walls of the vessel generates suflicient heat in the metal to cause the fragments to gradually assume a truly spherical form of a very high polish. The rate at which this reduction from the rough or angular form to the spherical form is performed is in proportion to the force or violence of the 5 reciprocating or shaking action and the amount of friction produced between the fragments of metal.

In order that my invention may be fully understood, I will now proceed to describe the same with reference to the accompanying 5o drawings, and then more particularly point it out in the claims.

In the drawings, Figure I is a front elevation of the apparatus. Fig. 11 is a transverse section, and Fig IIIis a plan. Fig. IV is a View similar to Fig. I, having the drivinggear removed. Figs. V and VI are detail views of one of the vessels and cover.

0 0 represent vertical standards which constitute the support for the apparatus, and on them are mounted the tracks forming ways P P, in which are fitted the sliding blocks a a. To these sliding blocks are connected by suitable Wrist-pins the upper ends of the pitmen or connecting-rods d, the other ends of which are connected to cranks as on crankshaft C. The sliding blocks a carry beams or bearers a, which support the vessels 6. In these vessels 1) the rough fragments of metal are placed. These fragments may be Waste scraps or other metal, stamped or cut so as to be approximately of equal dimensions on all their faces. By means of a crank-shaft O and connecting-rods cl a rapid vertically-reciprocating motion is imparted to the vessels 1), which causes the scraps of metal contained in the vessels to be violently thrown from one side to the other.

The formation of the end of vessel 1) and the means of charging and removing the fragments are shown in Figs. 5 and 6.

k is the cylinder-head, fixed to the sides by means of screws g, passing through a flange on head 70 and the sides of the cylinder. In the head It is formed a sliding door m, operated by crank n. Through. the aperture formed by opening this door m the metal is put into the cylinder and the shot removed.

The machine is driven by shaft 0, on which are mounted fast and loose pulleys f f (See Fig.2.) The vessels being charged with a suitable quantity of the fragments, the shaft 0 is set in motion by means of fast pulley f, which is run by suitable band-connection with the power. The shaft 0, revolving, imparts motion to the frame 6, carrying vessels Z) by means of connecting-rods d and cranks 00. This rapid up-and-down motion of the vessels I) soon causes the fragments to become heated by the friction, and in this heated state the angles and rough places on the frag ments are soon made to disappear by the continued striking against the walls of the vessels. By this means the fragments are gradually caused to assume a truly spherical shape.

\Vhen the shaking motion has continued for a sufficient period of time, the contents of the vessels are removed from the ends K, through the sliding doors m, and will be found to be of perfect spherical form and of a high polish. If they do not assume a sufficient degree of polish, however, they are put into a polishing-drum and polished over again, after which they are ready for the market.

The great advantage arising from this machine is the economy.

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. In an apparatus for manufacturing shot,

the combination of the standards or supports 0, having ways'P, the frame a, having sliding blocks a fitting in said ways, the receivers carried by said frames a, the crank-shaft, and the connecting pitmen for transmitting motion between the shaft and sliding blocks, all substantially as explained.

2. In an apparatus for manufacturing shot, the combination of suitable supports 0, aframe a, sliding on said supports and carrying cylindrical receivers, having sliding doors m in their ends for the removal of the shot, with suitable driving mechanism for imparting a reciprocating motion to frame and receivers, substantially in the manner and for the purpose set forth.

In witness whereof I have hereunto set my hand in presence of two witnesses.

FRANZ SERAFICUS KOHLER.

\Vitnesses:

WlLHELM PATAKY, B. ROI. 

